by Ryan Bullen
Amtrak ACS-64 puzzle, based on an original photo by Ryan Bullen (photo copyright Ryan Bullen -- used with permission). Photographed at Elizabeth, New Jersey, August 17, 2019.
The "Easy" version of the puzzle has about 100 pieces, "Medium" has about 200 pieces, "Hard" is about 300 pieces. For the Online puzzles, see the Online Puzzle Tips.